Steaming apparatus for staves



(No Model.) 4 Sheets-Sheet 1. G. S. GARDINER.

STEAMING APPARATUS FOR STAVES, Aw. N0.395,223. Patented D60. 25, 1888..

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STEAMING APPARATUS FOR STAVES, 650. 7 No. 396,223. Patented Dec. 25, 1888.

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' STEAMING APPARATUS FOR STAVES, 6:0. No. 395,223.

Patented Dec; 25, 1888.v

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(No Model.) 4 Sheets-Sheet 4.

0. s. GARDINER. STEAMING APPARATUS FOR STAVES, 650. v

No. 395,223. A Patented Dec. 25, 1888.

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UNITED STATES CHARLES S. GARDINER,

PATENT Orrr cn.

OF CHICAGO, ILLINOIS.

STEAMING APPARATUS FOR STAVES, 84.0.

SPECIFICATION forming part of Letters Patent N 0. 395,223, dated December 25, 1888.

Application filed March 19, 1838. Serial No. 267,740. (No model.)

To aZZ whom it may concern/.-

Be it known that I, CHARLES S. G-ARDINER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and use ful Improvement in Steaming Apparatus for Staves, &c.,wliich is fully set forth in the following specification, reference being had to the accompanying drawings, in which Figure 1 is a plan view of an apparatus embodying my invention; Fig. 2, a side elevation of the same; Fig. 3, a central longitudinal sectional view taken on the line 1 1 of Fig. 1; Fig. 4, a front elevation; Fig. 5, a detail sectional view taken on the line 9 of Fig. 2; Fig. 6, a detail plan view taken on the line 3 3 of Fig. 4; Fig. 7, a detail view of the valve; and Fig. 8, an elevation, partly in section, showing the apparatus connected to a superheater. Figs. 1 and 2 are on the same scale. Figs. 3 to 7, inclusive, are on a larger scale, and Fig. 8 is on a reduced scale.

Like letters refer to like parts in all the figures of the drawings. a

My invention relates to steaming apparatus for staves and other like articles, and has for its object to provide an apparatus by means of which the said articles may be subjected to the action of steam at a high pressure.

To these ends my invention cons is in certain novel features which I will now proceed to describe, and will then particularly point out in the claims. a

In the drawings, A represents a box or drum, preferably cylindrical in form, and constructed of iron or other material sufficiently strong and durable to resist high pressure and temperature. It is closed at the rear end by means of a cap, A, screwed thereon or secured thereto in any suitable manner, and supported at this end by means of an upright, A At forward end the box or drum A is provided with a flange, a, by means of which it is secured to the front plate, I through the medium of bolts u. The front plate, B, is provided with legs B, by means of which the front end of the drum A is supported. The front plate, B, is also provided with a circular aperture, 1), corresponding in diameter with the internal diameter of the drum A and coinciding therewith. In the front face of the front plate, B, is formed a recess, B to receive the valve C,Wl1ich moves vertically therein. \Vays b are formed at the sides of the recess B upon which the said valves may travel, and which serve to guide the same during its movement. The recess B is closed by means of a cap, D,which fits against the front plate, B, and which is secured thereto by bolts 01 or in any other suitable manner. This cap is provided with an aperture, D, which coinwith a central downward extension, 0 to cover the slot (1 when the valve is raised. The central portion of the valve is made of less thickness than the remainder, thus leaving on the front side onlyacomparatively narrow circular rim, 0, which merges into the extensions C and C and which is flush with the front surface thereof. This construction enables me to dispense with the actual scraping of the whole front surface of the valve, since it is only necessary to bring the surface of the rim 0 and of the extensions to an actual plane surface. The valve is similarly recessed at the rear, as shown at Fig. 7, and is provided at each side with an inclined notch or recess, 0', which co-operates with corresponding inclined projections, 0 which extend outward from the face of the recess 13 near the top thereof, and which engage with the inclines c when the valve is raised to its highest posifront of the machine. The lower end of the rod E is connected to the forward end. of a lever, E the said lever being pivoted at e to the support A and being provided at its rear end with a counterbalance-Weight, E', which is adjustable upon the said lever and which is secured thereon after adjustment by means of a set-screw, 6 This set-screw also serves to support a treadle or foot-rest, e, by means of which the lever and valve maybe operated from the rear of the machine.

F indicates a pipe opening into the box or drum A and passing, preferably, through the cap A at the rear thereof. This pipe leads to a T-piece, F, in which there is arranged a three-way valve, F provided with a suitable operating-handle, f.

G indicates the exhaust-pipe, which opens into one arm of the T-piece F, and H the steam-supply pipe, one end of which is connected to the third arm of the T-piece, from which it leads to a boiler or other suitable source of steam-supply. The supply-pipe II is provided with a valve, 71, by means of which the steam-supply may be regulated.

B indicates a drip-cock opening into the lower end of the recess B and servin to draw off any water of condensation which may have formed or collected in the said recess.

In Fig. 8 of the drawings I have shown my improved steaming apparatus as employed in conjunction with a superheater, which may be employed as an adjunct thereto. In this construction the steam-pipe II, instead of leading directly from the steaming apparatus to the boiler or other source of steam-supply, leads to a superheater, which consists of a suitable fire-box or furnace, I, within which are arranged a series of coils, J, connected to the pipe II at one end and provided at the other end with a pipe, K, leading to the boiler or other source of steam.

The operation is as follows: The box or drum A is first filled with a charge of staves or other articles to be treated, and the valve C is then closed by means of the mechanism provided for that purpose. As the valve reaches the upward-limit of its motion, the inclined projection bearing against the in.- clines c on the valve, will force the valve forward tightly against the cap I), and thus effectually close the front end of the box or drum. The valve F is then. turned so as to establish comnnmication between the steamsupply pipe ll and the pipe F. The hot dry steam is thus admitted to the interior of the drum A and will in a short time thoroughly dry and season the articles contained therein and fit them for bending. It willbe observed that the steam-pressure is exerted upon the back of the valve C, so that the greater this pressure is the more firmly and tightly will the said valve be held against its seat on the cap I), thus preventing any leakage at this point. After-being submitted to the action of the steam for about two minutes, the staves or other articles are ready to be withdrawn from the box or drum. the valve F is turned so as to close the steamsupply pipe and put the exhaust-pipe G in communication with the pipe F, as shown in the drawings. The steam thus escapes from the box A, and the valve 0 is then lowered, when the charge removed from the box, a fresh charge substituted therefor, and the op eration proceeds as before. It will be observed that, instead of the several .days employed in order to prepare the staves orother articles by the process usually employed, only two or three minutes are employed in eifecting the same results by the use of the apparatus which I have devised, thereby effecting a great saving in time and materially cheapening the cost of the product.

In case a superheater is employed, as in the construction shown in Fig. 8 of the drawings, each charge of steam is superheated before it is admitted to the steaming box or drum, and during the time that this charge is accomplishing its work, and while the drum is being unloaded an d reloaded, a fresh charge of steam drawn from the boiler or other source is being superheated in the coils J, so that a constant supply of steam at the proper temperature is insured. I

It is obvious that various modifications in the details of construction maybe made witlr out departing from the principle of my invention, and I therefore do not wish to be understood as limiting myself strictly to the precise details hereinbefore described, and shown in the drawings.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In an apparatus for steaming staves, &e., a box or drum having a steam-tight body open at one end,*in combination with a recessed front plate apertured as described, a correspondingly-apertured cap covering said recess, and a sliding valve arranged within the 'recess, adapted to close the aperture in the cap, and seated against the said cap when closed, substantially as and for the purposes specified.

2. In an apparatus for steaming staves, &c., the combination, with the box or drum A, of the correspondingly-apertured front plate, B, having recess 13 and inclined projections 0 the correspondingly-apertured cap D, covering said recess, and the valve 0, arranged in said recess, adapted to close the aperture in the cap, and provided with inclines 0, substantially as and for the purposes specified.

In an apparatus for steaming staves, the combination, with the box or drum A, of the front plate, 13, having recess 13 with ways Z), the apertured cap D, and the valve C, adapted to close the aperture in the cap and provided with extensions C to travel upon the ways 11', substantially as and for the purposes specified.

4. In an apparatus for steaming staves, &c., the combination, with the box or drum A, recessed front plate, B, and apertured cap D, of

To accomplish this.

the valve C, arranged in the recess and provided with a pin projecting through the aperture in the cap, by means of which said valve opera-ted, substantially as and for the purposes specified.

5. In an apparatus for steaming staves, &c., the combination, with the box or drum and the recessed front plate, B, of the cap I), closing said recess, provided with apertures D, and having slot (1 at the bottom thereof, and the valve 0, arranged in said recess and provided with pin E, projecting through aperture 1) and enterin the slot (1 when the valve is lowered, substantially as and for the purposes specified.

(3. In an apparatus for steamin staves, &c., the combination, with the box or drum A, recessed front plate, B, and apertured cap '1), of

the valve 0, recessed, as described, and having rim (2 to fit against the rear surface of the cap, snbstaui'iallg as and for the purposes specified.

7. In an apparatus for steaming staves, &c., the combination, with the box or drum A, recessed front plate, B, and apertured cap D, of the valve 0, arranged in said recess and provided with pin E, the rod E, connected to the said pin, and the lever E provided with a coimter-weight, E, at one end and connected to the rod E at the other end, substantially as and for the purposes specified.

CHARLES S. GARDINER.

itnesses:

IRVINE MILLER, ABBIE M. BEST. 

